Osprey

White ring with a black two numeric code.

note 1 : used numbers : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

note 2 :

Pale-blue ring with a black two numeric code (on right tarsus).

note 1 :

Pale-blue ring with a white three letter code, starting letter "I".

note 1 : birds ringed from 2016 onwards.

note 2 : used codes are : IAA - ...

note 3 :

Pale-blue ring with a white two alpha-numeric code (letter/number).

note 1 : birds ringed from 2006 - 2013.

note 2 : used codes are : A1 - T7.

note 3 :

Black ring with a white three alpha-numeric code.

note 1 :

Dark-blue with a white two numeric code (on right or left leg).

note 1 :

Dark blue with a white two alpha code (on the right or left leg).

note 1 :

Dark-blue with a white two alpha-numeric code (on right or left leg).

note 1 :

Blue ring with a white three alpha-numeric code (on right or left leg).

note 1 :

Yellow ring with a black three alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : used codes are : letter-number-letter (e.g. A1A)

note 2 : used letters are : A, C, F, H, J, K, L, M, N, P, R, S, T, U, V, W, X, Y, Z.

note 3 : first letter do not include U or Z.

note 4 : rings used from 2023 onwards.

note 5 :